Integrate with Ubercart Products

I'm trying to integrate this module with Ubercart's attribute selections (handled with AJAX). I installed the module, copied JS.php, added to .htaccess.

I'm having a difficult time understanding how to implement it with the Ubercart module however. This looks like the function I want to edit in the uc_product.module:

function uc_product_view_ajax_commands($form_state, $keys) {
  $commands = array();
  if (variable_get('uc_product_update_node_view', FALSE) && !empty($form_state['storage']['variant'])) {
    $node_div = '.uc-product-' . $form_state['storage']['variant']->nid;
    $build = node_view($form_state['storage']['variant']);
    foreach ($keys as $key) {
      if (isset($build[$key])) {
        $id = $node_div . '.' . str_replace('_', '-', $key);
        $commands[] = ajax_command_replace($id, drupal_render($build[$key]));
      }
    }
  }
  return $commands;
}

However I don't know how to adjust it to properly implement. Any help is greatly appreciated. Thank you.